EP2198708B1 - Window sticker for attracting and killing insects - Google Patents

Abstract

Product comprises a bait containing active layer (1) and a carrier film (2). The active layer contains at least 30 wt.% of a bait substance, at least 0.1 wt.% of an insecticide and at least 0.1 wt.% of a super disintegrant. ACTIVITY : Insect Attractant; Insecticide. No biological data given. MECHANISM OF ACTION : None given.

Description

The object of the present invention is a product for attracting and killing insects (especially flies), preferably in the form of a sticker to be stuck to window panes. The invention further relates to the manufacture of this product and its use in household, kitchen, catering, agriculture and industry.

Products for attracting and killing insects are known. These so-called "attract-and-kill" products also include fly window sticker of Blattanex ^® brand from Bayer CropScience Germany GmbH.

These fly window stickers are bait stickers for gluing on window panes in places that are gladly visited by the housefly. Attracted by the shape and the combination of feed and bait attractants, the flies are animated and eaten to feed. A single product should have a duration of action from a flying season, i. about 4 to 7 months.

Disadvantage of these known fly window stickers is that both water (condensation or wiping water) and high humidity can affect the effect. Therefore, it must be protected from water and moisture. Experiments have shown that when used in rooms with higher humidity (kitchen in private household or gastronomic operation, bathroom), the layer containing the combination of feed and / or bait attractant and an insecticidal active ingredient tends to dissolve. This effect also affects the performance of the product due to a shorter duration of action.

It has been found that, when the known product is used in an environment with a high relative humidity, the active substance-containing layer runs down. This manifests itself in the fact that water droplets form in the initially externally homogeneous layer, which contains the combination of edible and / or bait attractant and insecticide, which enlarge over time. Due to the vertical attachment to a window pane, first a coalescence of the water droplets and then finally a deliquescence, which ultimately leads to a wetting of the window pane.

This bleeding or bleeding is known from the field of painting technique damage to coatings and occurs there as long as the paint layer is still in the liquid state during processing on vertical Lackiergutflächen. The quite striking Lackiermangel of the phenomenon referred to in the terminology "running" results in "curtains" or "runners".

In extreme cases, the said layer, which contains the combination of feed and / or bait attractant and an insecticidal active ingredient, completely dissolve, whereby the product is ineffective.

Another drawback with the known fly window stickers was observed when used products were pulled off a windowpane. In some instances, peel-off of the combination of feed and / or bait attractant and insecticide-containing layer has occurred from the other components of the fly window sticker. In addition, it could also be observed that this layer disintegrated even into smaller parts. Such crumbling of the layer containing the feed and bait attractant required separate disposal by sweeping or soaking.

WO 2005/107457 A1 discloses water-soluble films for the release of active substances, in particular pesticides and plant growth substances. As materials for these films are inorganic and organic substances in question, which are swellable in water, but preferably completely soluble. The proportion of these water-soluble materials in the active substance-containing film is at least 20% by weight, preferably at least 45% by weight. However, the films do not contain larger amounts of bait.

WO 89/12450 A1 discloses terrestrial insect control compositions containing superabsorbents. Superabsorbents which are disclosed are organic polymers based on acrylamide and acrylates, which have a high water absorption capacity.

US 2007 / 232497A1 discloses a water-soluble tape for the controlled release of an active ingredient. This band is made up of water-soluble polymers. However, the tape does not contain larger amounts of bait.

The object of the present invention is to provide a window fly sticker for attracting and killing insects, in which the risk of dissolution of the layer containing the edible or bait attractant is reduced or even avoided, especially when exposed to water in the liquid or gaseous state.

Furthermore, the problem of insufficient adhesion of this layer on the other components of the fly window sticker, in particular a carrier layer to be solved.

Finally, the improvement of the internal cohesion ("cohesion") of a layer containing a feed and / or bait attractant is also an object of the present invention.

The object is achieved by a product for attracting and killing insects, which has at least one active substance-containing bait layer (1) and a carrier foil (2). The product contains in the active substance-containing bait layer (1) next to a bait a super-blasting agent. As a means of killing insects, the product contains at least one insecticide.

In a particular embodiment, the product has an anchor layer (4) which is arranged between the active substance-containing bait layer (1) and the carrier film (2).

In a further embodiment, the product may additionally have an adhesive layer (3).

To cover the adhesive layer (3), the product may be provided with a protective paper (6) until application. The active substance-containing bait layer (1) can be equipped with a protective paper (5) until it is used.

Finally, the product may also have decorative elements that exert or enhance an attractant effect on insects.

In an advantageous embodiment, the product is designed as a window sticker. Further advantageous embodiments are deployable traps and hangers.

The object is further achieved by a method for producing an article for attracting and killing insects, which comprises at least one active substance-containing bait layer (1) and a carrier foil (2), wherein in a first step at least one bait substance and at least one insecticide are mixed. In this step, at least one excipient which serves as a solvent for the insecticide and / or the bait substance, at least one auxiliary substance, at least one attractant and / or at least one bitter substance may also be added to the mixture. This first step may optionally be carried out with heating and / or with the addition of water.

In a second step, the super-disintegrant is added to the mixture from the first step.

The mixture thus obtained is subsequently applied to the carrier film (2) by means of a suitable application step. Printing processes such as flexographic printing, screen printing, pad printing, etc. may be suitable, but methods such as coating, extrusion, knife coating, spraying, etc. are also possible. A preferred application method is rotary screen printing.

After applying the mixture obtained in the second step to the carrier film (2), a laminate of an active substance-containing bait layer (1) and a carrier film (2) is formed. Any existing solvent (s) - especially water - is / are removed, preferably by drying and at elevated temperature (between 30 ° C and 90 ° C, preferably between 45 ° C and 85 ° C). Of course, the water content should of course be as low as possible, at least less than 5 wt .-%, preferably less than 2 wt .-%.

The active substance-containing bait layer (1) of this laminate can now be covered with a protective paper (5).

The two- or multi-layer composite of at least one active substance-containing bait layer (1) and at least one carrier foil (2) can be cut by longitudinal and transverse cutting into strips having suitable, predetermined dimensions.

In another embodiment of the method, round diecuts having a predetermined diameter can also be punched out of said laminate; but also any other shapes, such as oval or the printed motifs (flowers, etc.) correspond shapes. In these cases, a supernatant, superfluous stamping residue is preferably removed and discarded. Holes can also be introduced into the laminate from at least one active substance-containing bait layer (1) and at least one carrier foil (2), which can later serve as hangers. The purpose as a fastening device can also serve a hook-shaped formation on the outer edge of the laminate.

The two- or multi-layer composite of at least one active substance-containing bait layer (1) and at least one carrier foil (2) can also be additionally equipped with perforations and / or fold lines. The product can then be bent by the user along these perforations or folding lines, so that in this way a three-dimensional hollow body can be formed. Such kinks can thus enable a safer installation of the product, whereby the user is an erectable trap available.

Two- or multi-layered products are obtained which can be packed in sealed-edge bags, tubular bags, flat bags, wrapping paper, wrapping film, deep-drawing blister packs and / or cardboard boxes.

In a preferred embodiment of the production method, a carrier film (2) is used, in which an anchor layer (4) has been applied on one side before application of the mixture obtained in the second step. The mixture obtained in the second step is then applied to this anchor layer (4).

In a further embodiment, an adhesive layer (3) can additionally be applied to the side of the carrier film (2) facing away from the mixture to be applied. This is preferably done before the application of the mixture by coating and preferably with subsequent lamination of a protective paper (6).

The decorative elements of the product are likewise preferably applied to the carrier film (2) even before the mixture is applied, preferably by printing processes.

The use of the product which comprises at least one active substance-containing bait layer (1) and a carrier foil (2) for attracting and killing insects is finally another solution according to the invention.

An anchor layer (4) for improving the adhesion of different materials - in particular the constituents of the active substance-containing bait layer (1) - on a carrier film is another solution.

Finally, the use of a super-disintegrating agent for producing a layer containing a bait-in particular sugar-with improved inner cohesion is a further subject of the present invention.

The active substance-containing bait layer (1) is understood as meaning the constituent of the product which contains at least one bait substance and at least one insecticide.

The active substance-containing bait layer (1) has a basis weight in the range between 10 and 250 g / m ² , preferably in the range between 20 and 50 g / m ² . The area of the active substance-containing bait layer (1) of a single product is between 10 and 300 cm ² , preferably between 50 and 150 cm ² .

The active substance-containing bait layer (1) forms the uppermost layer of the product. This ensures that an insect in the application of the product can easily come into contact with the active substance-containing bait layer. Simultaneously with the inclusion of the bait substance takes a recording of the insecticide.

The insecticide is contained in the active substance-containing bait layer (1) in a concentration between 0.1 and 25 wt .-%, preferably in a concentration between 0.5 and 10 wt .-%.

During storage of the product, the active substance-containing bait layer may be covered with a protective paper (5), which is drawn off from the active substance-containing bait layer shortly before application of the product.

The active substance-containing bait layer (1) can be in the form of a continuous, i. continuous layer, preferably having an approximately constant thickness.

The active substance-containing bait layer (1) can also be present in the form of a non-continuous layer. In this discontinuous case, the active substance-containing bait layer, for example in the form of incomplete communicating points and / or stripes. Such forms of the active substance-containing bait layer (1) can be achieved by adapting the respective application method. In this case, appropriate templates can be placed on the carrier film to protect areas on the carrier film of an order of the mixture of at least one bait, at least one insecticide and the super-blasting agent.

The surface of the active substance-containing bait layer can be smaller in particular embodiments than the surface of the carrier film (2), which is easily achieved by a non-full-surface coating of the carrier film (2).

The active substance-containing bait layer (1) can also be present as a solid foam, in particular as rigid foam, as a semi-rigid foam or as a soft foam. In a particular embodiment, it is an elastic foam. Particularly preferred is the embodiment of the active substance-containing bait layer (1) as a flexible foam, which under compressive stress (compressive stress at 10% compression according to DIN 53421) has a deformation resistance of less than or equal to 15 kPa .. To produce a drug-containing bait layer (1) in the form of a solid foam For example, base polymers such as formaldehyde resins, polyisocyanurates (PIR), polystyrene, polyurethanes (PUR) and polyvinyl chloride are used.

In principle, the insecticide on the one hand and the bait with the super-blasting agent on the other hand can also be contained in two separate, preferably adjacent layers in the product. However, such an embodiment requires the provision of two separate starting materials which must be applied to the carrier film (2) in two separate operations. Even if this does not result in fundamental technical problems, such an embodiment is not preferred due to economic considerations.

The product contains a carrier film (2), which is arranged below the at least one active substance-containing bait layer (1). The carrier film (2) may be paper, paperboard or metal foil, but preference is given to a film - preferably transparent - of a plastic material. There are sol or composite films in question, which have a thickness between 5 and 150 microns, preferably between 25 and 75 microns.

The carrier film (2) has the function to give the product the handling and to allow the application of flowable components during the manufacturing process. The surface of the carrier film (2) is preferably identical to the surface of the active substance-containing bait layer (1).

In a particular embodiment, however, the surface of the carrier film (2) may also be larger than the area of the active substance-containing bait layer (1) and / or the adhesive layer (3) to provide a starting aid for the easy removal of a used product (in particular in the form of a Window stickers) from the application site.

Suitable materials for the carrier film (2) are polyethylene (PE), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyester, polypropylene (PP), cellophane, cellulose, polyvinylidene chloride, polystyrene, cardboard, cardboard composite, PET / cardboard / PET Composite and other raw materials in question. Preference is given to polyethylene (PE), polypropylene and polyethylene terephthalate (PET).

The product may include an adhesive layer (3) which provides adhesion to a solid surface. The adhesive layer therefore preferably contains a pressure-sensitive adhesive. By "pressure-sensitive adhesive" is meant that the adhesive layer adheres to a variety of surfaces in the dry state at room temperature after slight pressure and can be removed without leaving any residue if necessary.

Pressure-sensitive adhesives are known to the skilled person. These include synthetic and natural rubber, butyl rubber, styrene-butadiene copolymers, ethylene-vinyl acetate copolymers, acrylonitrile copolymers, polychloroprene, polyisobutylene, polyvinyl ethers, SBS block polymers, SIS block polymers, polyacrylates, polyesters, polyurethanes and polysiloxanes. In order to achieve the required pressure-sensitive adhesive properties, materials such as resins, plasticizers, fillers and stabilizers may be added to these base materials.

Particularly preferred as pressure-sensitive adhesives for the adhesive layer are polyacrylates, polyisobutylenes and ethylene-vinyl acetate copolymers.

The preferred pressure sensitive adhesives have a glass transition temperature in the range of -20 ° C to -70 ° C.

The adhesive layer (3) has a layer thickness in the range between 10 μm and 150 μm, preferably in the range between 20 μm and 70 μm.

The area of the pressure-sensitive adhesive layer preferably corresponds to the area which also possesses the active substance-containing bait layer (1) or the carrier foil (2). The area can also be much smaller and be formed, for example, in the form of a narrow strip or individual points.

The adhesive layer forms the lowest layer of the product in its application. During storage, this adhesive layer is preferably covered with a protective paper (6), which is pulled off from this layer shortly before the product is used.

The peel resistance of the adhesive layer in a 180 ° peel is preferably in the range of less than 10 N / 25 mm, more preferably in the range between 1 and 6 N (according to DIN EN 1464).

Suitable solid surfaces are in particular windows (made of glass or plastic), but also tiles, tiled walls, furniture (made of plastic or wood), window frames, wallpaper and the like in question. As an erectable trap, the product can be placed on any surface, especially in closed rooms.

As bait mainly sugar come into question. These include: monosaccharides, disaccharides and mixtures containing mono- and / or disaccharides. Sugar alcohols (alditols) are also suitable baits, in particular xylitol, D-glucitol ("sorbitol"), D-mannitol, maltitol, isomalt and lactilol.

Suitable monosaccharides are L-arabinose, D-xylose, D-ribulose, D-glucose ("dextrose") D-mannose, D-galactose, D-glucuronic acid (also called glucuronate or esterified), D-galacturonic acid (also called galacturonate or esterified), N-acetyl-D-glucosamine, D-glucosamine, N-acetyl-D-galactosamine, D-fucose, L-fucose, L-rhamnose, D-quinovose and D-fructose ("fructose").

Preferred monosaccharides are D-glucose and D-fructose.

Suitable disaccharides are maltose ("malt sugar"), cellobiose, isomaltose, isomaltulose, gentiobiose, trehalose, sucrose ("cane sugar" or "beet sugar"), lactose ("milk sugar") and laminaribiose.

Preferred disaccharides are lactose, maltose and sucrose.

Preferred sugar alcohol is D-glucitol.

Suitable mixtures containing mono- and / or disaccharides include maple juice, ahomsirup, baked honey, flower honey, glucose syrup, honey, honeydew honey, industrial honey, invert sugar, invert sugar syrup, isoglucose, isomerate sugar, corn syrup, maltose syrup, beet syrup, corn syrup and sugar beet syrup.

Also honey and forest honey (the bees do not win from nectar, but from honeydew, using as plants in forests growing deciduous and coniferous trees such as maple ( Acer pseudoplatanus ), field maple ( Acer campestre ), maple ( Acer platanoides ), oak ( Quercus petraea ), Pedunculate oak ( Quercus robur ), spruce ( Picea abies ), pine ( Pinus sylvestris ), larch ( Latrix decidua ) and fir ( Abies alba ) may be considered as suitable mixtures.

Preferred mixtures are glucose syrup and maltose syrup.

The concentration of the bait in the active substance-containing bait layer (1) should be as high as possible in order to maximize the attractiveness of the product. Therefore, the concentration of the bait may be up to 99.5 wt .-%, preferably it is between 50 and 95 wt .-%, more preferably between 70 and 90 wt .-%. As a suitable lower limit, a concentration of 30% by weight of bait in the active substance-containing bait layer (1) can be considered.

The insecticide may be natural and synthetic insecticides. Natural insecticides include pyrethrum, an extract of dried chrysanthemum flowers that contains pyrethrins, cinerines and jasmolines. The synthetic insecticides include in particular organic insecticides from the following classes of compounds: organophosphorus insecticides (eg parathion, dimethoate), carbamates (eg carbaryl, carbofuran, propoxur), pyrethroids (eg allethrin, cyfluthrin, permethrin), phenylpyrazoles (eg fipronil) and neonicotinoids (eg acetamiprid, imidacloprid, clothianidin, thiacloprid and thiametoxam).

Since the use of these substances in the home and allotment sector requires regulatory approval, only those insecticides are suitable, which also meet the licensing requirements (that is, the legal regulations in these areas: the Plant Protection Act, the Chemicals Act, the Biocidal Network, etc.). The insecticides used here act mainly via the nervous system or the respiratory chain.

Preference is given to those insecticides which cause the insect to die quickly.

Specifically, the following natural or synthetic insecticides are suitable: abamectin, acetamiprid, alpha-cypermethrin, azadirachtin (neem), azamethiphos, beta-cyfluthrin, bifenazates, bifenthrin, buprofezin, chlorantraniliprole, chlorfenapyr, chlorpyrifos, clothianidin, deltamethrin, diflubenzuron, dinotefuran, Dimethoate, esfenvalerate, etofenprox, fenoxycarb, fenpyroximate, flonicamid, flubendiamide, flufenoxuron, imidacloprid, imiprothrin, indoxacarb, potash soap, diatomaceous earth, lambda-cyhalothrin, lithium perfluorooctanesulfonate, magnesium phosphide, metaflumizone, methoxyfenozide, metofluthrin, milbemectin, mineral oils, n-methylneodecanamide, Nicarbazin, novaluron, pirimicarb, pirimiphos-methyl, pymetrozine, pyrethrins, pyridalyl, rapeseed oil, spinosad, spirodiclofen, sulfuryl fluoride, tebufenozide, tefluthrin, thiacloprid, thiamethoxam and zeta-cypermethrin.

Also suitable are biopesticides such as Bacillus thuringiensis subspecies and Mexican Cydia pomonella granulovirus.

Combinations of at least two insecticides are also suitable, such as abamectin + thiamethoxam, azamethiphos + fipronil, beta-cyfluthrin + clothianidin, beta-cyfluthrin + imidacloprid, cyfluthrin + codlemone, fludioxonil + metalaxyl-M + thiamethoxam, fuberidazole + imazalil + triadimenol + imidacloprid , Methiocarb + imidacloprid, pencycuron + imidacloprid, pyrethrins + abamectin, pyrethrins + rapeseed oil, as well as tefluthrin + imidacloprid.

Particularly preferred insecticides are acetamiprid, azamethiphos, ethofenprox, fipronil, imidacloprid, the pyrethroids and thiacloprid, and the combination of azamethiphos and fipronil.

The active substance-containing bait layer (1) may also contain at least one adjuvant which serves as a solvent for the insecticide and / or the bait substance. Suitable solvents include aliphatic hydrocarbons, aromatic hydrocarbons, hydroaromatic hydrocarbons, terpene hydrocarbons, alcohols, esters, ethers, glycol ethers, ketones, chlorinated hydrocarbons, aldehydes, acetals and aliphatic saturated monocarboxylic acids.

Examples include: 1-octanol, 1-decanol, acetone, acetophenone, benzyl alcohol, butyrolactone, hexyl laurate, PEG-60 Corn Glycerides with trade name Crovol M 70, citrus terpene, dimethylformamide, dimethyl sulfoxide, acetic acid, ethanol, ethyl acetate, ethylene glycol, eucalyptol , Glycerol, isopropyl myristate, methyl ethyl ketone, morpholine, lavender / citronella mixture, myrcene, neodecanoic acid, N-methyl-2-pyrrolidone (NMP), N-octylpyrrolidone (NOP), oleic acid, PEG 400, PLURONIC PE 4300, Proglyde DMM, diluted Hydrochloric acid, tributyl phosphate, Triton X-100 and water. Particularly preferred are methylpyrrolidone (NMP), N-octyl-pyrrolidone (NOP) and butyrolactone.

Suitable solvents for the insecticide may also be natural or synthetic polymers.

The active substance-containing bait layer (1) may also contain at least one of the following auxiliary substances: binders, UV absorbers, pH buffers, salts, anti-aging agents (antioxidants and antiozonants), fillers, plasticizers, Odor improvers, oxygen scavengers, antistatics, stabilizers, release agents, lubricants, flame retardants, microbicides, viscosity improvers, detergents, dispersants, optical brighteners, colorants, flavorings.

The active substance-containing bait layer (1) may also contain at least one attractant from the group of insect pheromones. These include sex pheromones and aggregation pheromones produced by insects such as Anastrephin, Bombykol, Brevicomin, Chalcogran, Cucujolide, Disparlur, Dominicalure, Epoxypolyenes, Ferrulactone, Frontalin, Grandisol, Hepialone, Ipsdienol, Lardolure, Lineatin, Matsuon, Muscalur, Multistriatin, Olean, Periplanone , Pityol, Quadrilur, Rhynchophorol, Serricornin, Stegobinone, Sulcatol, Verbenol and others. Such insect pheromones are - if they are contained in the active substance-containing bait layer (1) - in a concentration of 0.01 to 0.2 wt .-%, preferably from 0.05 to 0.1 wt .-% before.

In a particularly preferred embodiment, the active substance-containing bait layer (1) contains at least one bitter substance which is intended to prevent pets and / or small children from inadvertent consumption.

It has been found that the use of a super-blasting agent reduces or even eliminates the risk of dissolution of the ingredient containing the bait. For this purpose, the super-disintegrants may be contained in a separate layer adjacent to the active substance-containing bait layer (1). Preferably, however, the super-blasting agent is contained in the active substance-containing bait layer (1), so that a more intensive mixing of bait material and super-blasting agent is provided.

Suitable super-disintegrants are substances which are used as disintegrants in tablet manufacturing technology. They are excipients that ensure the rapid disintegration of tablets into water or gastric juice and for the release of pharmaceuticals in resorbable form. Such substances are suitable which have a high adsorption capacity for water, for example starch, cellulose derivatives, alginates, dextrans, cross-linked polyvinylpyrrolidone and others.

The fact that the use of such a super-disintegrant ensures the physical stability and integrity of the active substance-containing bait layer (1) despite exposure to moisture for a prolonged period of time is all the more astonishing since these substances are being used for rapid disintegration of tablets.

The superdisintegrant, when in the active substance-containing bait layer (1), is contained therein in a concentration of 0.1 to 10% by weight, preferably in a concentration of 0.5 to 5% by weight. In a particularly preferred embodiment, the active substance-containing bait layer (1) contains the super-blasting agent in a concentration of 1 to 2 wt .-%. Preferably, the super-disintegrants are used in the form of solid particles having a particle size of less than 65 microns, preferably between 25 and 35 microns.

In a preferred embodiment, carboxymethylcellulose is used as super-disintegrants. These are in particular the sodium salt of a crosslinked, partially O-carboxymethylated cellulose with CAS Reg.-Nr. 9004-32-4. Synonyms of this substance available under numerous brand names are, for example, croscarmellose, primrose or "cellulose, carboxymethyl ether, sodium salt, low-substituted". (US Drug Master File 9662)

In another preferred embodiment, carboxymethyl starch is used as the super-disintegrants. These are in particular the sodium salt of a crosslinked, partially O-carboxymethylated potato or corn starch. The sodium content can be between 2.0 and 5.0%. The substance has the following structure:

It is a starch derivative with the CAS no. 9063-38-1. The molecular weight of this substance is typically between 500,000 and 11,000,000. The substance is used in the form of solid particles with a diameter between 10 and 100 microns. Synonyms of this substance are, for example, Primojel or "Starch, carboxymethyl ether, monosodium salt". (US Drug Master File 3015)

The above-mentioned superdisintegrants can also be used generally to reduce the risk of dissolution of a sugar-containing layer in an environment of increased humidity, without this layer having to contain an insecticide. Such a sugar-containing layer (for example, the icing of a Cake or biscuits) may contain one of the disclosed sugars in a concentration of up to 99.5% by weight, preferably between 50 and 95% by weight, and a superdisintegrant in a concentration of 0.1 to 10% by weight. , preferably 0.5 to 2 wt .-%. Such an insecticide-free sugar-containing layer may also have a greater basis weight than the active substance-containing bait layer (1). for example, 50 to 1500 g / m ² .

The active substance-containing bait layer (1) may in one particular embodiment contain at least one surfactant. Surfactants are known as surfactants which cause wetting and rewetting of a surface.

The surfactants used are anionic, cationic, nonionic or amphoteric detergents.

Suitable anionic detergents are sulfonated and sulfated alkyl, arylalkyl and alkylaryl compounds, alkyl succinates, alkyl sulfosuccinates and N-alkoyl sarcosinates. Preference is given to sodium, magnesium, ammonium and the mono-, di- and triethanolamine salts of alkyl and arylalkyl sulfates and the corresponding salts of alkylarylsulfonates. The alkyl groups of the detergents generally have 12 to 21 carbon atoms and may be unsaturated, but preferably saturated. Also, alkyl ether sulfates containing 1 to 10 ethylene oxide or propylene oxide units per molecule can be used.

Typical suitable anionic detergents that can be used in the present invention are sodium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium (C _14-16 ) olefin sulfonates, sodium myristyl ether sulfate, ammonium lauryl ether sulfate, disodium lauryl sulfosuccinate, ammonium lauryl sulfosuccinate, sodium dodecyl benzyl sulfonate, sodium cocoyl isothionate, and sodium N-lauroyl sarcosinate. A particularly preferred surfactant in the product of the invention is sodium cocoamphoacetate.

Suitable cationic detergents are monoquaternary or bisquaternary ammonium compounds which carry at least one long-chain aliphatic radical having from 10 to 26 carbon atoms. This long-chain aliphatic radical may contain an ester bond or an amide bond. Hexadecylmethylammonium chloride is preferred.

As non-ionic detergents, condensation products of ethylene oxide or propylene oxide with a long-chain alcohol, a long-chain amine or a long-chain carboxylic acid may be used, as long as they are not liquid. In this case, the aliphatic carbon chain usually comprises 8 to 20 Carbon atoms and may be condensed with 5 to 20 ethylene oxide or propylene oxide units. As non-ionic detergents, it is also possible to use alkyl polyglycosides having 8 to 14 carbon atoms in the alkyl chain.

The amphoteric detergents used are in particular betaines which carry long alkyl groups. These include coco dimethylcarboxymethylbetaine, lauryldimethylcarboxymethylbetaine, lauryldimethyl-a-carboxyethylbetaine, cetyldimethylcarboxymethylbetaine, but also sulfobetaines such as cocosdimethylsulfodimethylbetaine and amido and amidosulfobetaines. The carboxybetaines and the amidobetaines are particularly preferred. Specific examples of these are cocosamidopropyl betaine, laurylamidopropyl betaine, myristylamidopropyl betaine and mixtures of the compounds mentioned.

The at least one surfactant is present in the active substance-containing bait layer in an amount of up to 5 wt .-%, preferably up to 2 wt .-%. In a particularly preferred embodiment, the surfactant is present in an amount of between 0.1 and 0.5% by weight in the active substance-containing bait layer (1).

The protective paper (5) serves to protect the active substance-containing bait layer (1) during storage of the product.

The protective paper (6) serves to protect the adhesive layer (3) during storage of the product.

Suitable protective papers may consist of a metal foil, a plastic film, paper or a composite material. The protective papers (5) or (6) are preferably non-sticky on the side facing the layer to be protected, for example by coating with silicone. The protective papers can be printed on the side facing away from the layer to be protected.

The product may also contain an anchor layer (4) located between the carrier film (2) and the bait layer (1) containing the active substance and which effects a better attachment of the components of the active substance-containing bait layer (1) to the carrier foil (2).

The thickness of the anchor layer (4) may be up to 25 microns, with a thickness of 3 to 10 microns is preferred. The anchor layer (4) can have an approximately constant thickness. In a preferred embodiment, however, the anchor layer (4) does not have a constant thickness, which can be attributed to the presence of regular or irregular recesses ("depressions"). In a particularly preferred embodiment, these recesses have in the Anchor layer a regular geometric shape, for example, round, oval, diamond-shaped, rectangular or square.

In a preferred embodiment, the anchor layer (4) has regularly arranged square recesses of 0.5 to 3 mm, preferably 0.8 to 2 mm and particularly preferably 1 mm edge length, so that it has the overall shape of a grid. In this case, the grid bars 5 to 25, preferably 8 to 15 and particularly preferably 10 microns high. If such recesses are present in the anchor layer (4), they are preferably on the side of this layer which borders on the active substance-containing bait layer (1).

Suitable materials for the anchor layer (4) are synthetic polymers. Such polymers, which are the basis for water-based paints, such as dispersions (based on styrene acrylates (eg Luhydran ^® S 937 T), polyvinyl acetate, phenolic resins, PVC, polyvinyl acetate, polyvinyl propionate, PVP homopolymers, PVP copolymers, poly preferred are Meth) acrylates, polystyrene, hydrocarbon resins, polyurethane or polyurethane hybrids.

The anchor layer is preferably congruent with the active substance-containing bait layer (1). It is used in particular when the active substance-containing bait layer (1) has only an incomplete inner cohesion.

The anchor layer may be prepared by roll coating, brushing, casting, spraying or, preferably, by a printing process. Here especially the rotary screen printing comes into question. In the case of an anchor layer with recesses, in the former techniques appropriately shaped templates must be placed on the carrier film (2) so that the recessed areas are not wetted by the polymer used as material for the anchor layer. In the printing process just such pressure rollers can be used. But it is also possible to use pressure rollers with elevations, so that only the areas of the carrier film (2) to be printed are wetted by the polymer used as material for the anchor layer.

Motifs of flowers, holograms, objects with shadows, which suggest a three-dimensionality, and specific signal colors come into consideration as decorative elements.

These motifs acting as an optical stimulus for the target insect can preferably be printed on the carrier foil (2). Also a coloring of transparent carrier foil in a signal or lock color (yellow, red, etc.) can serve this purpose.

In the context of the present description, insects are understood to mean, in particular, hygiene pests such as ants (Formicidae), brakes (Tabanidae), flies (Brachycera), mosquitoes (Culicidae), cockroaches (Blattaria), silverfish (Lepismatidae), bedbugs (Cimicidae) and wasps (Vespinae ), some of which can even transmit diseases to humans and animals.

Particularly preferred "target insects" are the housefly ( Musca domestica ) and the fruit fly ( Drosophila melanogaster ).

A single product may have an area between 10 and 300 cm ² , preferably between 50 and 150 cm ² . A single product may contain between 2 to 50 mg of an insecticide. The product may be rectangular, strip-shaped oval or round, in the form of a window sticker the round shape is preferred.

The duration of use of an individual product may be up to 7 months, the application being carried out in an environment with a relative humidity of 40 to 100%, preferably at least 80%, without any leakage ("running off") of the active substance-containing bait layer (1). is observed.

The invention also relates to a process for the preparation of a product containing an active substance-containing bait layer (1) and a carrier film (2), wherein in a first step at least one bait, at least one insecticide and optionally additionally at least one substance from the group of excipients, as Solvents are mixed for the insecticide and / or the bait, the excipients, the attractants, the surfactants and the bitter substances are mixed, in a second step, a super-blasting agent is added to this mixture and the resulting mixture is then applied to the carrier film (2), wherein optionally before the application of the mixture obtained in the second step onto the carrier film (2), an anchor layer (4) is applied to this side of the carrier film.

The invention also relates to the use of a superdisinching agent selected from the group comprising carboxymethylcellulose and / or carboxymethyl starch for reducing the risk of dissolution of a sugar-containing layer in an environment with increased humidity, the layer containing at least 50 wt .-% of a sugar and preferably a basis weight of 50 to 1,500 g / m ² .

Finally, the invention also relates to a method for attracting and killing insects, in particular ants (Formicidae), brakes (Tabanidae), flies (Brachycera), mosquitoes (Culicidae), cockroaches (Blattaria), silverfish (Lepismatidae), bedbugs (Cimicidae) and Wasps (Vespinae), wherein a product comprising a medicated bait layer (1) and a carrier foil (2) is offered to these insects in a manner which enables the insects to receive the active ingredient - preferably an insecticide - simultaneously with the bait.

The following examples serve to illustrate the manufacture of the product.

Example 1:

844.49 g of glucose syrup are weighed into a heatable container. A drug solution of 36.5 g of acetamiprid and 73 g of N-octyl-pyrrolidone is added while stirring in the glucose syrup and stirred for about 30 minutes at 40 ° C. Thereafter, successively 1.7 g of a 5% aqueous Bitrex solution, 2.5 g of sodium lauryl sulfate and 41.5 g of primrose oil are added and the mixture is stirred until a milky homogeneous suspension is formed.

This mass is subsequently printed by means of a screen printing machine onto a 50 μm polyethylene terephthalate carrier film (2) equipped with pressure-sensitive adhesive and printed with flowers in the print motif area. After removal of the water by drying at an elevated temperature, the active ingredient-containing bait layer (1) now produced has a surface weight of 20 g / m ² .

This composite is punched so that round diecuts are created with a sunflower motif and a diameter of about 10 cm. On the laminate thus obtained, a siliconized paper serving as a protective layer (5) is applied and the entire composite is cut into a card of 100 × 220 mm in size. This single card with two products in the form of sunflower stickers is packed in sealed pouches.

Example 2:

888.5 g of glucose syrup are weighed into a heatable container. Successively, 66.3 g Etofenprox, 1.6 g of a 5% aqueous Bitrex solution, 2.5 g Dehyton and 41.0 g Primojel be added with stirring in the glucose syrup and stirred at 40 ° C. The mixture is stirred until a seemingly homogeneous, oily suspension is formed.

This mass is then spread on a 100 micron polypropylene carrier film (2) equipped with pressure-sensitive adhesive. After removal of the water by drying at elevated temperature, the active ingredient-containing bait layer (1) now produced has a surface weight of 50 g / m ² .

This composite is punched into strips so that 6 strips of 10 mm x 200 mm are produced on a surface of 60 x 200 mm. On the strip laminate thus obtained, a siliconized paper serving as a protective layer (5) is laid up and cut into a card of 60 mm × 200 mm. Two of these individual cards with 6 strips each are packed in a folding box.

Example 3:

844.49 g of glucose syrup are weighed into a heatable container. A solution of 36.5 g of acetamide and 73 g of N-octyl-pyrrolidone is added with stirring into the glucose syrup and stirred for about 30 minutes at 40 ° C. Thereafter, successively 1.7 g of a 5% aqueous Bitrex solution, 2.5 g of Dehyton and 41.5 g of primrose is added and the mixture is stirred (about 30 minutes) until a seemingly homogeneous suspension is formed.

This mass is about 120 microns thick medium by means of a coating box on a PET / cardboard / PET composite, which was previously provided on the back with a double-sided adhesive fixing tape with protective cover. After removal of the water by drying at elevated temperature, the resulting active substance-containing bait layer (1) has a weight per unit area of 100 g / m ² . The cardboard / bait compound is covered with a one-side siliconised paper and then provided with cross-folds at three points, so that the user can see clearly visible bend specifications. The composite is cut transversely after 200 mm and the resulting triangular lures (eg 65 mm x 200 mm) are packed in tubular bags.

The end user now has the opportunity to buckle the composite at the transverse folds before using the product. For this purpose, the user must first remove the protective film from the "fixing adhesive" (3). The triangle formed by the buckling is glued together by means of the fixing band and now forms an erectable trap.

Description of the pictures:

• FIG. 1 shows the schematic structure of a product in cross section.
• FIG. 2 shows the schematic structure of the product in cross section, wherein additionally between the active substance-containing bait layer (1) and the carrier film (2) an anchor layer (4) is included.
• FIG. 3 shows the product in the form of a carrier film having the active substance-containing bait layer (2) in the form of two longitudinal strips and with cutting lines (8) and fold lines (7) is provided. The buckling along the folding lines (7) makes it possible to insert the tab (9) into the cutting line (10) and thus to produce an erectable trap from the carrier film (2).

LIST OF REFERENCE NUMBERS

1. 1 = wirkstoffhaltige Köderschicht
2. 2 = Trägerfolie
3. 3 = Kleberschicht
4. 4 = Ankerschicht
5. 5 = Schutzpapier
6. 6 = Schutzpapier
7. 7 = Falzlinie
8. 8 = Schnittlinien

In the figures, the numbers have the following meaning:

1. 1 = active substance-containing bait layer
2. 2 = carrier film
3. 3 = adhesive layer
4. 4 = anchor layer
5. 5 = protective paper
6. 6 = protective paper
7. 7 = fold line
8. 8 = cutting lines

Claims (15)

1. Product for attracting and destroying insects, which product has an active-substance-comprising bait layer (1) and a backing film (2), characterized in that the active-substance-comprising bait layer (1) comprises

   i. at least 30% by weight of a bait substance,

   ii. at least 0.1% by weight of an insecticide and

   iii. at least 0.1 to no more than 10% by weight of a superdisintegrant which is carboxymethylcellulose and/or carboxymethyl starch or crosslinked polyvinylpyrrolidone.
2. Product according to Claim 1, characterized in that the bait substance is a sugar, preferably a monosaccharide, in particular L-arabinose, D-xylose, D-ribulose, D-glucose, D-mannose, D-galactose, D-glucuronic acid, glucuronate D-galacturonic acid, N-acetyl-D-glucosamine, D-glucosamine, N-acetyl-D-galactosamine, D-fucose, L-fucose, L-rhamnose, D-chinovose and D-fructose, a disaccharide, in particular maltose, cellobiose, isomaltose, isomaltulose, gentiobiose, trehalose, sucrose, lactose and laminaribiose, a mixture comprising a mono- and/or a disaccharide, in particular maple sap, maple syrup, baker's honey, blossom honey, glucose syrup, honey, honeydew honey, industrial honey, invert sugar, invert syrup, isoglucose, isomerate sugar, maize syrup, maltose syrup, treacle, corn syrup, molasses, and forest honey, or a sugar alcohol, in particular xylitol, D-glucitol, D-mannitol, maltitol, isomalt and lactitol, or a combination of at least two of these sugars.
3. Product according to one or more of Claims 1 to 2, characterized in that the concentration of the bait substance in the active-substance-comprising bait layer (1) is up to 99.5% by weight and preferably between 50 and 95% by weight and especially preferably between 70 and 90% by weight.
4. Product according to one or more of Claims 1 to 3, characterized in that the insecticide is selected from the group consisting of pyrethrum, organophosphorous insecticides, carbamates, pyrethroids, phenylpyrazoles, neonicotinoids and biopesticides.
5. Product according to one or more of Claims 1 to 4, characterized in that the insecticide is selected from the group consisting of abamectin, acetamiprid, alpha-cypermethrin, azadirachtin (neem), azamethiphos, beta-cyfluthrin, bifenazate, bifenthrin, buprofezin, chloranthraniliprole, chlorfenapyr, chlorpyrifos, clothianidin, deltamethrin, diflubenzuron, dinotefuran, dimethoate, esfenvalerate, etofenprox, fenoxycarb, fenpyroximate, flonicamid, flubendiamid, flufenoxuron, imidacloprid, imiprothrin, indoxacarb, potash soap, kieselguhr, lambda-cyhalothrin, lithium perfluoroctanesulphonate, magnesium phosphide, metaflumizone, methoxyfenozide, metofluthrin, milbemectin, mineral oils, N-methylneodecanamide, nicarbazin, novaluron, pirimicarb, pirimiphos-methyl, pymetrozine, pyrethrins, pyridalyl, rapeseed oil, spinosad, spirodiclofen, sulphuryl fluoride, tebufenozide, tefluthrin, thiacloprid, thiamethoxam, zeta-cypermethrin, Bacillus thuringiensis subspecies, Mexican Cydia pomonella granulovirus, and combinations of abamectin + thiamethoxam, azamethiphos + fipronil, beta-cyfluthrin + clothianidin, beta-cyfluthrin + imidacloprid, cyfluthrin + codlemone, fludioxonil + metalaxyl-M + thiamethoxam, fuberidazole + imazalil + triadimenol + imidacloprid, methiocarb + imidacloprid, pencycuron + imidacloprid, pyrethrins + abamectin, pyrethrins + rapeseed oil and tefluthrin + imidacloprid.
6. Product according to one or more of Claims 1 to 5, characterized in that the insecticide used is acetamiprid, azamethiphos, ethofenprox, fipronil, imidacloprid, at least one pyrethroid, thiacloprid or the combination of azamethiphos and fipronil.
7. Product according to one or more of Claims 1 to 6, characterized in that the superdisintegrant in the active-substance-comprising bait layer (1) is present in a concentration of between 0.5 and 5% by weight and preferably in a concentration of between 1 and 2% by weight.
8. Product according to one or more of Claims 1 to 7, characterized in that the active-substance-comprising bait layer (1) comprises at least one surfactant from the group of the anionic, cationic, nonionic or amphoteric detergents, with suitable anionic detergents being sulphonated and sulphated alkyl, arylalkyl and alkylaryl compounds, alkylsuccinates, alkylsulphosuccinates and N-alkoylsarcosinates, preferably sodium salts, magnesium salts, ammonium salts and the mono-, di- and triethanolamine salts of alkyl sulphates, arylalkyl sulphates and alkylarylsulphonates, where the alkyl groups have 12 to 21 carbon atoms and are unsaturated, but preferably saturated, and alkylether sulphates having 1 to 10 ethylene oxide or propylene oxide units per molecule, in particular sodium lauryl sulphate, sodium lauryl ether sulphate, ammonium lauryl sulphate, triethanolamine lauryl sulphate, sodium (C₁₄-₁₆) - olefinsulphonates, sodium myristyl ether sulphate, ammonium lauryl ether sulphate, disodium lauryl sulphosuccinate, ammonium lauryl sulphosuccinate, sodium dodecylbenzyl sulphonate, sodium cocoylisethionate, sodium N-lauroylsarcosinate, and especially preferably sodium cocoamphoacetate, cationic detergents which may be used being monoquaternary or bisquaternary ammonium compounds which have attached to them at least one aliphatic radical which has 10 to 26 carbon atoms and which may comprise an ester bond or an amide bond, in particular hexadecylmethylammonium chloride, suitable nonionic detergents being condensates of ethylene oxide or propylene oxide and a long-chain alcohol, a long-chain amine or a long-chain carboxylic acid, where the hydrocarbon chain comprises 8 to 20 carbon atoms and is condensed with 5 to 20 ethylene oxide or propylene oxide units, and alkylpolyglycosides having 8 to 14 carbon atoms in the alkyl chain, and suitable amphoteric detergents being betaines, in particular cocodimethylcarboxymethylbetaine, lauryldimethylcarboxymethylbetaine, lauryldimethyl-α-carboxyethylbetaine, cetyldimethylcarboxymethylbetaine, sulphobetaines, in particular cocodimethylsulphodimethylbetaine, amidobetaines, in particular cocoamidopropylbetaine, laurylamidopropylbetaine, myristylamidopropylbetaine and amidosulphobetaines.
9. Product according to one or more of Claims 1 to 8, characterized in that the active-substance-comprising bait layer (1) has an areal weight of between 10 and 250 g/m², preferably between 20 and 50 g/m².
10. Product according to one or more of Claims 1 to 9, characterized in that the concentration of the insecticide in the active-substance-comprising bait layer (1) is between 0.1 and 25% by weight, preferably between 0.5 and 10% by weight.
11. Product according to one or more of Claims 1 to 10, characterized in that the concentration of the surfactant in the active-substance-comprising bait layer (1) amounts to no more than 5% by weight, preferably less than 2% by weight and especially preferably between 0.1 and 0.5% by weight.
12. Product according to one or more of Claims 1 to 11, characterized in that it has an anchoring layer (4) between the active-substance-comprising bait layer (1) and the backing layer (2).
13. Product according to one or more of Claims 1 to 12, characterized in that the anchoring layer (4) has a thickness of up to 25 µm and features preferably regularly arranged square recesses with an edge length of from 0.5 to 3 mm, preferably from 0.8 to 2 mm and especially preferably 1 mm.
14. Product according to one or more of Claims 1 to 13, characterized in that the active-substance-comprising bait layer (1) is present in the form of a continuous layer, a noncontinuous layer, preferably in the form of dots or strips, or as a rigid foam.
15. Product according to one or more of Claims 1 to 14, characterized in that the active-substance-comprising bait layer (1) comprises at least one adjuvant from the group of the solvents for the insecticide and/or the bait substance, suitable substances being aliphatic hydrocarbons, aromatic hydrocarbons, hydroaromatic hydrocarbons, terpene hydrocarbons, alcohols, esters, ethers, glycol ethers, ketones, chlorohydrocarbons, aldehydes, acetals, aliphatic saturated monocarboxylic acids, natural and synthetic polymers, preferably 1-octanol, 1-decanol, acetone, acetophenone, benzyl alcohol, butyrolactone, hexyl laurate, PEG-60 corn glycerides, citrus terpenes, dimethylformamide, dimethyl sulphoxide, acetic acid,
    ethanol, ethyl acetate, ethylene glycol, eucalyptol, glycerol, isopropyl myristate, methyl ethyl ketone, morpholine, lavender/citronella mixtures, myrcene, neodecanoic acid, N-methyl-2-pyrrolidone, N-octylpyrrolidone, oleic acid, PEG 400 and tributyl phosphate, from the group of the attractants, suitable substances being in particular the sexual pheromones and aggregation pheromones which are produced by the insects themselves, preferably anastrephin, bombycol, brevicomin, chalcogran, cucujolide, disparlure, dominicalure, epoxypolyene, ferrulactone, frontalin, grandisol, hepialon, ipsdienol, lardolure, lineatin, matsuon, muscalure, multistriatin, olean, periplanone, pityol, quadrilure, rhynchophorol, serricornin, stegobinon, sulcatol and verbenol, from the group of the bittering agents, the binders, the UV absorbers, the pH buffers, the salts, the antiageing agents (antioxidants and antiozonants), the fillers, the plasticizers, the odour-masking agents, the deoxidizers, the antistatics, the stabilizers, the separating agents, the glidants, the flame retardants, the microbicides, the viscosity enhancers, the dispersants, the optical brighteners, the colorants and the flavourings.

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